... 72B, 80#, 82B Diameter Range: 0.20mm~12.00mm 1. Product Name: High Carbon Steel Wire, Spring Steel Wire, ... 0.20≤0.20≤0.2565Mn0.650.200.70-1.00≤0.03≤0.03≤0.20≤0. ... 3. Production Standard: GB4357-89, JIS G3521-1991, DIN17223-1, BS EN10270-14. Main Markets: India, South Korea, Malaysia ... , Bangladesh, Sri Lanka, Iran, Israel, Brazil, South Africa Hard Drawn High Carbon Spring Steel Wire for Mattress